US PATENT SUBCLASS 492 / 37
.~.~ Irregular or uneven arrangement; e.g., etched, shot blasted

Current as of: June, 1999
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492 /   HD   ROLL OR ROLLER

28  DF  WITH SPECIFIC ROLLER EXTERIOR SURFACE STRUCTURE {2}
30  DF  .~ Surface projections, indentations, or slits {5}
37.~.~ Irregular or uneven arrangement; e.g., etched, shot blasted

DEFINITION

Classification: 492/37

Irregular or uneven arrangement; e.g., etched, shot blasted:

(under subclass 30) Roll in which the recesses or projections have no dominant alignment but are irregular in arrangement and/or depth such as would be formed by sandblasting or etching the surface.